Sonoma County, California, is one of many places where wildlife populations are being hemmed in by new growth. Nonprofits and funders are searching for solutions. Here's what the Moore Foundation is up to.

Long before Henry M. Paulson, Jr., was U.S. Treasury Secretary under George W. Bush, he wanted to be a forest ranger. Together with wife Wendy, an active birder, conservationist, and environmental educator, they oversee a significant funder of protections our feathered friends.

Ted Turner has taken an unusual, Noah-like approach to saving endangered wildlife — he gives them a home in his yard. Of course, that strategy only works if you have a very, very large yard, so in Turner's case, it's a good thing he owns about two million acres of land.

What's an atheist, libertarian millionaire with no heirs to do with his fortune, now that he's long retired and well into his golden years?

If that millionaire is Robert W. Wilson, he writes checks — huge checks — to a select list of charitable causes. Wilson can't take it with him, and he's not interested in pawning the job off on a bunch of foundation types, so he's giving it away now in big chunks. Fortunately for endangered species, a huge beneficiary has been the Wildlife Conservation Society, which has seen Wilson skyrocket to the top of the their list of donors, with no close second.